Re: DMA still impossible on K7M mb - VIA chipset

From: Jens Axboe (axboe@suse.de)
Date: Fri Mar 03 2000 - 19:52:30 EST


On Fri, Mar 03 2000, Marco Meloni wrote:
>
> I just compiled kernel 2.3.49 but things are going in the same way.
> This is the output of the hdparm -d 1 /dev/hda command:
>
> hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
> hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
> hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
> hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
> hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
> hda: DMA disabled
> ide0: reset: success
>
> obviously, I compiled with the experimental support for via chipset
> and the cable is the right one needed for ata/66.

The cable might be the right one, but badcrc still indicates that
it is not good enough. Don't go with border line cable lengths
and quality, especially not for ata-66.

-- 
*  Jens Axboe <axboe@suse.de>
*  Linux CD-ROM Maintainer
*  http://www.kernel.dk

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